1.Research progress on pharmacological activities and mechanisms of farrerol
Siyuan XI ; Yin MA ; Yingying LIANG ; Wenwen LIAN ; Bingzhi MA ; Jun HE
China Pharmacy 2026;37(13):1768-1772
Farrerol is a dihydroflavone compound extracted from the dried leaves of Rhododendron dauricum belonging to the Ericaceae family. This article systematically reviews relevant research on farrerol both domestically and internationally, summarizes its pharmacological activities and mechanisms of action, and finds that it exerts cardiovascular and cerebrovascular protective effects by maintaining the homeostasis of vascular endothelial function and inhibiting vascular intimal hyperplasia; exerts renal protective effects by activating the nuclear factor erythroid 2-related factor 2 (Nrf2) signaling pathway to reduce renal damage; exerts liver protective effects by inhibiting the phosphatidylinositol 3-kinase/protein kinase B signaling pathway, activating the Nrf2 signaling pathway, improving insulin resistance, and reducing lipid deposition in the liver; exerts neuroprotective effects by activating the Nrf2/Keap1 signaling pathway, inhibiting the Toll-like receptor 4 and cyclic GMP-AMP synthase/stimulator of interferon genes signaling pathways to reduce neuroinflammatory damage; exerts bone protective effects by promoting tendon formation and inhibiting osteoclast differentiation; exerts antitumor effects by inducing tumor cell apoptosis and weakening tumor cell invasion and metastasis; and exerts antibacterial effects by downregulating α -toxin expression, interfering with β -lactamase/penicillin-binding protein 2a (PBP2a), and inhibiting PBP2a oligomerization. Currently, research on the pharmacological effects of farrerol is still mainly focused on animal and cell experiments. Further mechanistic studies and clinical trials are needed to provide theoretical basis for its new drug development and clinical application.
2.Research progress on pharmacological activities and mechanisms of farrerol
Siyuan XI ; Yin MA ; Yingying LIANG ; Wenwen LIAN ; Bingzhi MA ; Jun HE
China Pharmacy 2026;37(13):1768-1772
Farrerol is a dihydroflavone compound extracted from the dried leaves of Rhododendron dauricum belonging to the Ericaceae family. This article systematically reviews relevant research on farrerol both domestically and internationally, summarizes its pharmacological activities and mechanisms of action, and finds that it exerts cardiovascular and cerebrovascular protective effects by maintaining the homeostasis of vascular endothelial function and inhibiting vascular intimal hyperplasia; exerts renal protective effects by activating the nuclear factor erythroid 2-related factor 2 (Nrf2) signaling pathway to reduce renal damage; exerts liver protective effects by inhibiting the phosphatidylinositol 3-kinase/protein kinase B signaling pathway, activating the Nrf2 signaling pathway, improving insulin resistance, and reducing lipid deposition in the liver; exerts neuroprotective effects by activating the Nrf2/Keap1 signaling pathway, inhibiting the Toll-like receptor 4 and cyclic GMP-AMP synthase/stimulator of interferon genes signaling pathways to reduce neuroinflammatory damage; exerts bone protective effects by promoting tendon formation and inhibiting osteoclast differentiation; exerts antitumor effects by inducing tumor cell apoptosis and weakening tumor cell invasion and metastasis; and exerts antibacterial effects by downregulating α -toxin expression, interfering with β -lactamase/penicillin-binding protein 2a (PBP2a), and inhibiting PBP2a oligomerization. Currently, research on the pharmacological effects of farrerol is still mainly focused on animal and cell experiments. Further mechanistic studies and clinical trials are needed to provide theoretical basis for its new drug development and clinical application.
3.Comparison of Histopathological and Molecular Pathological Phenotypes in Mouse Models of Intrauterine Adhesions Induced by Two Concentrations of Ethanol Perfusion
Juan JIANG ; Ning SONG ; Wenbo LIAN ; Congcong SHAO ; Wenwen GU ; Yan SHI
Laboratory Animal and Comparative Medicine 2025;45(4):393-402
Objective To construct intrauterine adhesion (IUA) mouse models induced by two different concentrations of ethanol injury, compare the phenotypes, and optimize a more stable IUA modeling method. Methods Twenty 8-week-old female C57BL/6N mice were randomly divided into two groups: the 95% ethanol injury group and the 50% ethanol injury group. Using a self-control method, the left uterine horn was infused with ethanol to establish the IUA model, while the right uterine horn was infused with saline as the sham operation. Five mice from each group were euthanized on day 7 and 15 after modeling, and uterine tissues were collected. Hematoxylin-eosin (HE) staining was used to observe the endometrial pathology, and Masson staining was used to assess the degree of endometrial fibrosis. Quantitative real-time PCR was employed to detect the expression levels of fibrosis markers and pro-inflammatory factors in the uterine tissues. Results Compared to the sham operation, these two ethanol injury led to a significant reduction in elasticity of the uterus, an increase in inflammatory infiltration, and a marked increase in the degree of fibrosis on day 7 after modeling (P<0.05). The 95% ethanol injury group showed a significant decrease in endometrial thickness (P<0.05), whereas no significant change was observed in the 50% ethanol injury group when compared to the sham operation (P>0.05). The expression levels of fibrotic marker molecules collagen type Ⅳ alpha 1 chain (Col4A1), α-smooth muscle actin (α-SMA), transforming growth factor-β (TGF-β), and pro-inflammatory factors tumor necrosis factor-α (TNF-α) and interleukin-1β (IL-1β) were significantly elevated in the 50% ethanol injury group when compared to the sham operation (P<0.05), although there was an increasing trend of the same markers in the 95% ethanol injury group, the differences were not statistically significant (P>0.05). On day 15 after modeling, the histopathological changes in both ethanol injury groups were not significant when compared to the sham operation, the expression levels of Col4A1, TGF-β, TNF-α and IL-1β remained significantly higher in the 50% ethanol injury group (P<0.05), while only IL-1β was significantly elevated in the 95% ethanol injury group (P<0.05). Conclusion Uterine infusion with 95% ethanol results in more marked histopathological changes in the IUA mouse model compared to the 50% ethanol injury group. The 95% ethanol injury model is suitable for histopathological studies. However, the 50% ethanol injury group shows higher expression levels of fibrosis markers and pro-inflammatory factors compared to the 95% ethanol injury group, suggesting that the 50% ethanol injury model is more suitable for molecular pathological study.
4.Practice and evaluation of pharmacists’participation in long-term MTM models for stroke patients based on family doctor system
Lu SHI ; Chun LIU ; Lian TANG ; Jingjing LI ; Sudong XUE ; Yanxia YU ; Wenwen LI ; Keren YU ; Jianhui XUE ; Wen MA ; Hongzhi XUE
China Pharmacy 2025;36(9):1129-1134
OBJECTIVE To investigate the clinical efficacy of integrating pharmacists into family health teams (FHTs) for long-term medication therapeutical management (MTM) in stroke patients, and empirically evaluate the service model. METHODS A pharmacist team, jointly established by clinical and community pharmacists from the Affiliated Suzhou Hospital of Nanjing Medical University (hereinafter referred to as “our hospital”), developed a pharmacist-supported MTM model integrated into FHTs. Using a prospective randomized controlled design, 170 stroke patients discharged from our hospital (July 2022-December 2023) and enrolled in FHTs at Suzhou Runda Community Hospital were randomly divided into trial group (88 cases) and control group (82 cases) according to random number table. The control group received routine FHTs care (without pharmacist involvement in the team collaboration), while the trial group xhz8405@126.com received 12-month MTM services supported by pharmacists via an information platform. These services specifically included innovative interventions such as personalized medication regimen optimization based on the MTM framework, dynamic medication adherence management, medication safety monitoring, a home medication assessment system, and distinctive service offerings. Outcomes of the 2 grousp were compared before and after intervention, involving medication adherence (adherence rate, adherence score), compliance rates for stroke recurrence risk factors [blood pressure, low-density lipoprotein cholesterol (LDL-C)], and incidence of adverse drug reactions (ADR). RESULTS After 12 months, the trial group exhibited significantly higher medication adherence rates, improved adherence scores, higher compliance rates for blood pressure and LDL-C targets compared to the control group (P<0.05). The incidence of ADR in the trial group (4.55%) was significantly lower than that in the control group (8.11%), though the difference was not statistically significant (P> 0.05). CONCLUSIONS Pharmacist involvement in FHTs to deliver MTM services significantly enhances medication adherence and optimizes risk factor for stroke recurrence, offering practical evidence for advancing pharmaceutical care in chronic disease management under the family doctor system.
5.Natural killer cell-derived granzyme B as a therapeutic target for alleviating graft injury during liver transplantation.
Kai WANG ; Zhoucheng WANG ; Xin SHAO ; Lijun MENG ; Chuanjun LIU ; Nasha QIU ; Wenwen GE ; Yutong CHEN ; Xiao TANG ; Xiaodong WANG ; Zhengxing LIAN ; Ruhong ZHOU ; Shusen ZHENG ; Xiaohui FAN ; Xiao XU
Acta Pharmaceutica Sinica B 2025;15(10):5277-5293
Liver transplantation (LT) has become a standard treatment for end-stage liver diseases, and graft injury is intricately associated with poor prognosis. Granzyme B (GZMB) plays a vital role in natural killer (NK) cell biology, but whether NK-derived GZMB affects graft injury remains elusive. Through the analysis of single-cell RNA-sequencing data obtained from human LT grafts and the isolation of lymphocytes from mouse livers following ischemia-reperfusion injury (IRI), we demonstrated that 2NK cells with high expression of GZMB are enriched in patients and mice. Both systemically and liver-targeted depletion of NK cells led to a notable reduction in GZMB+ cell infiltration, subsequently resulting in diminished graft injury. Notably, the reconstitution of Il2rg -/- Rag2 -/- mice with purified Gzmb-KO NK cells demonstrated superior outcomes compared to those with wild-type NK cells. Crucially, global knockout of GZMB and pharmacological inhibition exhibited remarkable improvements in liver function in both mouse IRI and rat LT models. Moreover, a phosphorylated derivative of FDA-approved vidarabine was identified as an effective inhibitor of mouse GZMB activity by molecular dynamics, which could provide a potential avenue for therapeutic intervention. Therefore, targeting NK cell-derived GZMB during the LT process suggests potential therapeutic strategies to improve post-transplant outcomes.
6.Meta analysis of risk factors for spontaneous bacterial peritonitis in cirrhosis patients with ascites
Xiaohui HAO ; Lufei XING ; Lihua WANG ; Wenwen LIAN
Chinese Journal of Nosocomiology 2025;35(6):867-874
OBJECTIVE To systematically evaluate the risk factors for spontaneous bacterial peritonitis(SBP)in the cirrhosis patients with ascites so as to provide bases for reducing the incidence of SBP.METHODS The literatures regarding to cirrhosis ascites complicated with SBP were retrieved from the databases such as PubMed,Embase,Cochrane Library,CBM,CNKI,Wanfang and VIP.The time frame of retrieval was limited from the establish-ment of the databases to Jan.10,2024.The quality of the literatures was evaluated by Newcastle-Ottawa Scale(NOS).The data were analyzed by using STATA 16.0.RESULTS A total of 43 pieces of literatures were included in the study,involving 9877 research subjects,3384 of whom were complicated with SBP.The result of meta a-nalysis showed that the risk factors(P<0.05)for SBP in the cirrhosis patients with ascites included the general factor(history of SBP),the disease factors(gastrointestinal hemorrhage,diarrhea,diabetes mellitus),drug fac-tors(use of proton pump inhibitors),physiological indexes[low blood sodium,low serum albumin,high serum bilirubin,rise of C-reactive protein(CRP)],liver function scoring indexes[Child-turcotte-pugh(CTP)grade C,model of end-stage liver disease(MELD)],and ascites indexes[low ascites albumin,rise of ascites white blood cells and rise of tumor necrosis factor-α(TNF-α)].CONCLUSIONS SBP is one of the most severe complications in the cirrhosis patients with ascites.Multiple risk factors may have remarkable influence on the occurrence and de-velopment of SBP.It is necessary to take targeted interventions to the controllable risk factors during the clinical practice so as to effectively reduce the risk of SBP in the cirrhosis patients with ascites.
7.Meta analysis of risk factors for spontaneous bacterial peritonitis in cirrhosis patients with ascites
Xiaohui HAO ; Lufei XING ; Lihua WANG ; Wenwen LIAN
Chinese Journal of Nosocomiology 2025;35(6):867-874
OBJECTIVE To systematically evaluate the risk factors for spontaneous bacterial peritonitis(SBP)in the cirrhosis patients with ascites so as to provide bases for reducing the incidence of SBP.METHODS The literatures regarding to cirrhosis ascites complicated with SBP were retrieved from the databases such as PubMed,Embase,Cochrane Library,CBM,CNKI,Wanfang and VIP.The time frame of retrieval was limited from the establish-ment of the databases to Jan.10,2024.The quality of the literatures was evaluated by Newcastle-Ottawa Scale(NOS).The data were analyzed by using STATA 16.0.RESULTS A total of 43 pieces of literatures were included in the study,involving 9877 research subjects,3384 of whom were complicated with SBP.The result of meta a-nalysis showed that the risk factors(P<0.05)for SBP in the cirrhosis patients with ascites included the general factor(history of SBP),the disease factors(gastrointestinal hemorrhage,diarrhea,diabetes mellitus),drug fac-tors(use of proton pump inhibitors),physiological indexes[low blood sodium,low serum albumin,high serum bilirubin,rise of C-reactive protein(CRP)],liver function scoring indexes[Child-turcotte-pugh(CTP)grade C,model of end-stage liver disease(MELD)],and ascites indexes[low ascites albumin,rise of ascites white blood cells and rise of tumor necrosis factor-α(TNF-α)].CONCLUSIONS SBP is one of the most severe complications in the cirrhosis patients with ascites.Multiple risk factors may have remarkable influence on the occurrence and de-velopment of SBP.It is necessary to take targeted interventions to the controllable risk factors during the clinical practice so as to effectively reduce the risk of SBP in the cirrhosis patients with ascites.
8.Metabonomics analysis on Terra Flavausta in treating diarrhea with spleen yang deficiency based on UPLC-Q-Exactive MS
Wenwen CHEN ; Dandan TANG ; Lian ZHONG ; Li AI ; Chunjie WU
International Journal of Traditional Chinese Medicine 2023;45(5):568-573
Objective:To study the effects of Terra Flavausta on diarrhea mice with spleen yang deficiency based on metabonomics. Methods:Totally 30 mice were divided into normal group, model group and Terra Flavausta group according to random number table method. Mice in the model group and Terra Flavausta group were treated by the method of "diet disorder + clearing fire with herbs bitter in flavour and cold in property" to establish the diarrhea model of spleen yang deficiency. After successful modeling, Terra Flavausta group received Zaoxintu Decoction 12.0 g/kg for gavage, while normal group and model group were given equal volume of distilled water for gavage, for consecutive 7 d. The serum metabolites of each mouse were analyzed and identified based on UPLC-Q-Exective-MS. The differential metabolites were characterized by principal component analysis and orthogonal partial least squares discriminant analysis, and the potential biomakers were screened, and the KEGG pathway enrichment analysis was performed. Results:Totally 110 different metabolites were screened under the positive and negative ion mode. Terra Flavausta can effectively reverse the disorder of serum metabolism in diarrhea mice with spleen yang deficiency, and has a significant callback effect on 12 potential biomarkers related to diarrhea with spleen yang deficiency. KEGG pathway enrichment mainly involved HIF-1 signaling pathway, ascorbate and aldarate metabolism, platelet activation, etc. Conclusion:Terra Flavausta may play the effect of warming spleen and relieving diarrhea through down-regulation of L-ascorbic acid affecting HIF-1 signal pathway, ascorbic acid and aldose metabolism pathway, vitamin digestion and absorption pathway, up-regulation of prostaglandins G2 and H2 affecting platelet activation pathway, and down-regulation of jasmonic acid α linolenic acid metabolic pathway.
9.The relevance of electrocardiographic abnormalities and prognosis in patients with paraquat poisoning
Wenwen LI ; Yahui TANG ; Ran YIN ; Jie LIAN ; Yu XIA ; Zhongqiu LU ; Guangliang HONG
Chinese Journal of Industrial Hygiene and Occupational Diseases 2022;40(12):931-934
Objective:To investigate the relationship between electrocardiographic (ECG) changes and prognosis of paraquat poisoning patients, so as to provide evidence for the condition assessment in paraquat poisoning patients.Methods:In January 2022, The clinical data of paraquat poisoning patients were retrospectively analyzed in the First Affiliated Hospital of Wenzhou Medical University from January 1, 2016 to December 31, 2021. The patients' basic information (age, sex, underlying disease, and occupation) and the ECG within 24 hours were collected, and the data were statistically analyzed by SPSS 22.0. One variable analysis and multivariable logistic regression analysis were used to analyze the risk factors related to prognosis determine in their ECG. The receiver operating characteristic (ROC) curve were used to evaluate the diagnostic value of ECG indexes in patients with paraquat poisoning.Results:A total of 145 patients with paraquat poisoning were finally enrolled in this study, there were 84 patients survived and 60 patients died. One variable analysis revealed that heart rate ( P=0.000) , QTc changes ( P=0.000) , and ST-T changes ( P=0.007) of ECG had statistically significant differences in the prognosis of paraquat poisoning patients between the survival group and the death group. Multifactorial logistic results showed that heart rate ( OR=1.059, 95% CI: 1.033~1.086) and QTc ( OR=1.015, 95% CI: 1.000~1.029) were independent risk factors for death diagnosis of patients with paraquat poisoning ( P<0.05) . ROC curve analysis revealed that the area under the cure (AUC) of the prediction model constructed based on heart rate and QTc was 0.832 (95% CI: 0.765~0.899) , with the best diagnostic efficacy. Conclusion:Heart rate, QTc and the prediction model constructed based on both can be used as prognostic indicators for the diagnosis of patients with paraquat poisoning, and which have reference value for clinical prognosis diagnosis.
10.The relevance of electrocardiographic abnormalities and prognosis in patients with paraquat poisoning
Wenwen LI ; Yahui TANG ; Ran YIN ; Jie LIAN ; Yu XIA ; Zhongqiu LU ; Guangliang HONG
Chinese Journal of Industrial Hygiene and Occupational Diseases 2022;40(12):931-934
Objective:To investigate the relationship between electrocardiographic (ECG) changes and prognosis of paraquat poisoning patients, so as to provide evidence for the condition assessment in paraquat poisoning patients.Methods:In January 2022, The clinical data of paraquat poisoning patients were retrospectively analyzed in the First Affiliated Hospital of Wenzhou Medical University from January 1, 2016 to December 31, 2021. The patients' basic information (age, sex, underlying disease, and occupation) and the ECG within 24 hours were collected, and the data were statistically analyzed by SPSS 22.0. One variable analysis and multivariable logistic regression analysis were used to analyze the risk factors related to prognosis determine in their ECG. The receiver operating characteristic (ROC) curve were used to evaluate the diagnostic value of ECG indexes in patients with paraquat poisoning.Results:A total of 145 patients with paraquat poisoning were finally enrolled in this study, there were 84 patients survived and 60 patients died. One variable analysis revealed that heart rate ( P=0.000) , QTc changes ( P=0.000) , and ST-T changes ( P=0.007) of ECG had statistically significant differences in the prognosis of paraquat poisoning patients between the survival group and the death group. Multifactorial logistic results showed that heart rate ( OR=1.059, 95% CI: 1.033~1.086) and QTc ( OR=1.015, 95% CI: 1.000~1.029) were independent risk factors for death diagnosis of patients with paraquat poisoning ( P<0.05) . ROC curve analysis revealed that the area under the cure (AUC) of the prediction model constructed based on heart rate and QTc was 0.832 (95% CI: 0.765~0.899) , with the best diagnostic efficacy. Conclusion:Heart rate, QTc and the prediction model constructed based on both can be used as prognostic indicators for the diagnosis of patients with paraquat poisoning, and which have reference value for clinical prognosis diagnosis.

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